CVE-2025-22097: linux kernel Use-After-Free — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: drm/vkms: Fix use after free and double free on init error If the driver initialization fails, the vkms_exit() function might access an uninitialized or freed default_config pointer and it might double free it. Fix both possible errors by initializing default_config only when the driver initialization succeeded.

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CVSS v3.1 Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-416 Use After Free

Affected Products

Vendor	Product	Versions
linux	linux_kernel	5.12 — 5.15.180
linux	linux_kernel	5.16 — 6.1.134
linux	linux_kernel	6.2 — 6.6.87
linux	linux_kernel	6.7 — 6.12.23
linux	linux_kernel	6.13 — 6.13.11
linux	linux_kernel	6.14 — 6.14.2

References

Advisories & Patches

https://git.kernel.org/stable/c/1f68f1cf09d06061eb549726ff8339e064eddebd https://git.kernel.org/stable/c/49a69f67f53518bdd9b7eeebf019a2da6cc0e954 https://git.kernel.org/stable/c/561fc0c5cf41f646f3e9e61784cbc0fc832fb936 https://git.kernel.org/stable/c/79d138d137b80eeb0a83244d1cff29e64cf91067 https://git.kernel.org/stable/c/b8a18bb53e06d6d3c1fd03d12533d6e333ba8853 https://git.kernel.org/stable/c/d5eb8e347905ab17788a7903fa1d3d06747355f5 https://git.kernel.org/stable/c/ed15511a773df86205bda66c37193569575ae828

Other References

https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html

Frequently Asked Questions

What is CVE-2025-22097? +

In the Linux kernel, the following vulnerability has been resolved: drm/vkms: Fix use after free and double free on init error If the driver initialization fails, the vkms_exit() function might access an uninitialized or freed default_config pointer and it might double free it. Fix both possible errors by initializing default_config only when the driver initialization succeeded. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-22097? +

CVE-2025-22097 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-22097? +

CVE-2025-22097 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-22097? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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